If Sofia and Juana worked together I would take them 1 hour
Answer:
n= 27
Step-by-step explanation:
To solve first subtract the 90-degree angle:
180-90= 90
Then, convert into an equation:
3n+9= 90
Subtract 9 from both sides:
3n=81
Then divide by 3:
n= 27
Hope this helps!
2z +7 = -5
2z = -5 -7
2z = -12
z= -12 /2
z= -6
